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Cheap flights from Portland to Ireland from $247

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Ireland departing on 10/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Portland to Ireland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
3:45 pm - 10:15 amPDX-DUB
11h 30m1 stop
Icelandair Logo
11:30 am - 6:00 pmDUB-PDX
13h 30m1 stop
$448Icelandair
Find Deal
Tue, Mar 10 - Wed, Mar 18
Icelandair Logo
3:45 pm - 10:15 amPDX-DUB
11h 30m1 stop
Icelandair Logo
11:30 am - 6:00 pmDUB-PDX
13h 30m1 stop
$453Icelandair
Find Deal
Mon, Mar 9 - Wed, Mar 18
United Airlines Logo
7:00 am - 8:10 amPDX-DUB
17h 10m1 stop
United Airlines Logo
9:00 am - 8:38 pmDUB-PDX
43h 38m2 stops
$455United Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 22
Air Canada Logo
3:15 pm - 7:10 amPDX-DUB
31h 55m2 stops
Air Canada Logo
9:00 am - 8:38 pmDUB-PDX
43h 38m2 stops
$457Air Canada
Find Deal
Mon, Nov 3 - Sun, Nov 9
United Airlines Logo
7:11 am - 7:30 amPDX-DUB
16h 19m2 stops
United Airlines Logo
9:00 am - 6:05 pmDUB-PDX
41h 05m3 stops
$460United Airlines
Find Deal
Wed, Feb 18 - Sun, Mar 1
Air Canada Logo
7:40 pm - 7:45 amPDX-DUB
28h 05m1 stop
Air Canada Logo
9:00 am - 2:40 pmDUB-PDX
37h 40m2 stops
$464Air Canada
Find Deal
Wed, Oct 22 - Mon, Nov 10
British Airways Logo
1:26 pm - 3:05 pmPDX-DUB
17h 39m2 stops
British Airways Logo
8:40 pm - 3:55 pmDUB-PDX
27h 15m1 stop
$465British Airways
Find Deal
Sun, Nov 16 - Tue, Nov 25
Delta Logo
5:30 am - 8:45 amPDX-DUB
20h 15m2 stops
Delta Logo
5:55 am - 11:25 amDUB-PDX
13h 30m1 stop
$467Delta
Find Deal
Sun, Oct 26 - Mon, Nov 10
British Airways Logo
5:45 pm - 7:40 pmPDX-DUB
17h 55m1 stop
British Airways Logo
8:40 pm - 3:55 pmDUB-PDX
27h 15m1 stop
$469British Airways
Find Deal
Sun, Feb 22 - Tue, Mar 3
Delta Logo
12:55 am - 7:45 amPDX-DUB
22h 50m1 stop
Delta Logo
1:25 pm - 11:25 amDUB-PDX
30h 00m1 stop
$471Delta
Find Deal
Sat, Feb 21 - Sat, Mar 7

United Airlines flights from Portland to Ireland

Our best United Airlines deals on Portland to Ireland flight tickets
United Airlines
Nov 15
PDX7:00 amPortland
17h 10m
1 stop
DUB8:10 amDublin
Nov 22
DUB9:00 amDublin
43h 38m
2 stops
PDX8:38 pmPortland
$455
Find similar
United Airlines
Feb 18
PDX7:11 amPortland
16h 19m
2 stops
DUB7:30 amDublin
Mar 1
DUB9:00 amDublin
41h 05m
3 stops
PDX6:05 pmPortland
$460
Find similar
United Airlines
Mar 5
PDX5:45 amPortland
17h 25m
2 stops
DUB7:10 amDublin
Mar 15
DUB8:00 amDublin
40h 38m
2 stops
PDX5:38 pmPortland
$462
Find similar

Air Canada flights from Portland to Ireland

Our best Air Canada deals on Portland to Ireland flight tickets
Air Canada
Nov 3
PDX3:15 pmPortland
31h 55m
2 stops
DUB7:10 amDublin
Nov 9
DUB9:00 amDublin
43h 38m
2 stops
PDX8:38 pmPortland
$457
Find similar
Air Canada
Oct 22
PDX7:40 pmPortland
28h 05m
1 stop
DUB7:45 amDublin
Nov 10
DUB9:00 amDublin
37h 40m
2 stops
PDX2:40 pmPortland
$464
Find similar
Air Canada
Oct 25
PDX11:59 pmPortland
23h 11m
2 stops
DUB6:10 amDublin
Nov 8
DUB9:00 amDublin
32h 15m
2 stops
PDX9:15 amPortland
$470
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 2, 2025.
Use the filters below to find and compare flights from Portland to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandDublin

PDX - DUB

PDXDUB

Portland

Tue 3/10

3:45 pm-10:15 am

1 stop11h 30m

Dublin

Wed 3/18

11:30 am-6:00 pm

1 stop13h 30m

$448

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 3/9

3:45 pm-10:15 am

1 stop11h 30m

Dublin

Wed 3/18

11:30 am-6:00 pm

1 stop13h 30m

$453

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sat 11/15

7:00 am-8:10 am

1 stop17h 10m

Dublin

Sat 11/22

9:00 am-8:38 pm

2 stops43h 38m

$455

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 11/3

3:15 pm-7:10 am

2 stops31h 55m

Dublin

Sun 11/9

9:00 am-8:38 pm

2 stops43h 38m

$457

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 2/18

7:11 am-7:30 am

2 stops16h 19m

Dublin

Sun 3/1

9:00 am-6:05 pm

3 stops41h 05m

$460

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 10/22

7:40 pm-7:45 am

1 stop28h 05m

Dublin

Mon 11/10

9:00 am-2:40 pm

2 stops37h 40m

$464

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 11/16

1:26 pm-3:05 pm

2 stops17h 39m

Dublin

Tue 11/25

8:40 pm-3:55 pm

1 stop27h 15m

$465

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 10/26

5:30 am-8:45 am

2 stops20h 15m

Dublin

Mon 11/10

5:55 am-11:25 am

1 stop13h 30m

$467

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 2/22

5:45 pm-7:40 pm

1 stop17h 55m

Dublin

Tue 3/3

8:40 pm-3:55 pm

1 stop27h 15m

$469

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sat 2/21

12:55 am-7:45 am

1 stop22h 50m

Dublin

Sat 3/7

1:25 pm-11:25 am

1 stop30h 00m

$471

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Portland to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

In general, November is the cheapest month to fly from Portland to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $486. If you aren’t able to travel to Ireland during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $515.

What is the cheapest day to depart on your flight to Ireland?

The cheapest day to depart on your flight to Ireland is on a Tuesday when prices can be found for as low as $560. This is often the case because there is less demand to fly during this day of the week. Flights from Portland to Ireland on a Saturday will generally be more expensive and average around $743. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ireland?

According to our data, the cheapest time of day to fly to Ireland is at noon. momondo users have found flights departing from Portland to Ireland at noon for as low as $597. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Ireland is in the morning when prices are around $696.

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $608 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Portland for as low as $563 on momondo.

Cheap Portland to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Ireland

Direct flights

None
There are no direct flights from Portland to Ireland. There are no popular flight routes from Portland to Ireland.
Search flight deals

  • When did momondo last update prices for flights from Portland Airport to Ireland?

    Prices for flights from Portland Airport to Ireland are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portland Airport to Ireland?

  • How old do you have to be to fly from Portland Airport to Ireland?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Portland to Ireland

Compare and see reviews for airlines that fly from Portland to Ireland with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $347Free CancellationRating
7.0
546 reviews
Search Icelandair flights
IberiaPriceFrom $437Free CancellationRating
7.0
2,967 reviews
Search Iberia flights
United AirlinesPriceFrom $468Free CancellationRating
7.4
8,933 reviews
Search United Airlines flights
KLMPriceFrom $471Free CancellationRating
7.8
1,389 reviews
Search KLM flights
British AirwaysPriceFrom $472Free CancellationRating
6.7
7,415 reviews
Search British Airways flights
American AirlinesPriceFrom $484Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom $488Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
LufthansaPriceFrom $490Free CancellationRating
6.8
7,444 reviews
Search Lufthansa flights
Air FrancePriceFrom $493Free CancellationRating
7.4
1,467 reviews
Search Air France flights
DeltaPriceFrom $494Free CancellationRating
7.9
7,962 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Ireland?

It is quick and easy to find Portland to Ireland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ireland that suits you.

Can I find flights from Portland to Ireland with flexible booking policies on momondo?

Flights from Portland to Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to Ireland?

Once all potential Portland to Ireland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to Ireland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Ireland trip

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